Verbal Reasoning - Arithmetic Reasoning - Discussion

Discussion Forum : Arithmetic Reasoning - Section 1 (Q.No. 30)
30.
In a city, 40% of the adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, then what percent of the population is literate ?
20%
25%
50%
75%
Answer: Option
Explanation:

Discussion:
13 comments Page 2 of 2.

Washington said:   7 years ago
How did you get that 1/5x? please explain.

Nayana said:   6 years ago
The ratio of adults to children (total) = 2:3.

So, adding these ratios up, we can conclude that out of 5 people, 2 of them are adults and 3 of them are children.

So, adults = 2/5,
children = 3/5.

They have taken 1/5 as common, this is how 1/5 comes.
hope it helps.
(3)

Sherab Jatsho said:   3 years ago
Here our answer should be in percent.

So, 75x/20 * 1/5x = 75/100.
Now 75/100*100(percent) = 75%.
Correct me if am wrong.


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